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arXiv 2205.03046astro-ph.IMastro-ph.HEastro-ph.SR
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模拟高时间分辨率radio-telescope观测

Simulating high-time resolution radio-telescope observations

Rui Luo, George Hobbs, Suk Yee Yong, Andrew Zic, Lawrence Toomey, Shi Dai, Alex Dunning, Di Li, Tommy Marshman, Chen Wang, Pei Wang, Shuangqiang Wang, Songbo Zhang

摘要:

我们描述了一个新的软件包,用于模拟信道化,高时间分辨率的数据流从射电望远镜。该软件模拟来自望远镜和观测系统的数据,同时考虑到观测策略、接收器系统和数字化。模拟了射电星、快速射电暴和耀斑星的特征,包括散射和闪烁等与频率有关的效应。我们还使用样条曲线和图像模拟更通用的信号。射频干扰的模型包括来自卫星、地面发射机和脉冲宽带信号的信号。模拟信号也可以被注入到真实的数据集。该软件的用途包括生产机器学习训练数据集,开发和测试新算法,以搜索异常模式和优化处理管道。

英文摘要:

We describe a new software package for simulating channelised, high-time resolution data streams from radio telescopes. The software simulates data from the telescope and observing system taking into account the observation strategy, receiver system and digitisation. The signatures of pulsars, fast radio bursts and flare stars are modelled, including frequency-dependent effects such as scattering and scintillation. We also simulate more generic signals using spline curves and images. Models of radio frequency interference include signals from satellites, terrestrial transmitters and impulsive, broadband signals. The simulated signals can also be injected into real data sets. Uses of this software include the production of machine learning training data sets, development and testing of new algorithms to search for anomalous patterns and to characterise processing pipelines.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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